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Fourier transform infrared spectroscopy
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- Author:
- Bettina Baumgartner; Stephan Freitag; Bernhard Lendl
- Source:
- Analytical chemistry 2020 v.92 no.7 pp. 4736-4741
- ISSN:
- 1520-6882
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; bovine serum albumin; cost effectiveness; crystals; epoxides; germanium; optical equipment; polymerization; silicon; spectrometers; temperature; three-dimensional printing; wafers
- Abstract:
- ... In this work, we present a fully 3D-printed module for attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy ready for use in commercial FTIR spectrometers. The developed setup stands out in terms of robustness and ease of sample application. Rapid prototyping paired with theoretical considerations were employed to design and fabricate the module. Cost-efficient commercial ...
- DOI:
- 10.1021/acs.analchem.9b04043
- https://doi.org/10.1021/acs.analchem.9b04043
- Author:
- Adam R. Offenbacher; Bridgette A. Barry
- Source:
- Journal of physical chemistry 2020 v.124 no.2 pp. 345-354
- ISSN:
- 1520-5207
- Subject:
- DNA replication; Escherichia coli; Fourier transform infrared spectroscopy; X-radiation; active sites; adenosine triphosphate; aspartic acid; carbon; cysteine; electron transfer; energy conversion; glutamic acid; humans; hydrogen bonding; hydroxamic acids; hydroxylamine; hydroxyurea; iron; isotope labeling; ligands; mice; protons; ribonucleotide reductase; solar energy; solvents; stable isotopes
- Abstract:
- ... Proton-coupled electron transfer (PCET) is fundamental to many important biological reactions, including solar energy conversion and DNA synthesis. For example, class Ia ribonucleotide reductases (RNRs) contain a tyrosyl radical-diiron cofactor with one aspartate ligand, D84. The tyrosyl radical, Y122•, in the β2 subunit acts as a radical initiator and oxidizes an active site cysteine in the α2 su ...
- DOI:
- 10.1021/acs.jpcb.9b08587
- https://doi.org/10.1021/acs.jpcb.9b08587
- Author:
- Aydın Cihanoğlu; Sacide Alsoy Altinkaya
- Source:
- Journal of membrane science 2020 v.594 pp. 117438
- ISSN:
- 0376-7388
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray photoelectron spectroscopy; antibacterial properties; artificial membranes; bacteria; cationic surfactants; cetyltrimethylammonium bromide; contact angle; electrostatic interactions; gelation; leaching; micelles; molecular weight; permeability; polymers; sodium chloride; ultrafiltration
- Abstract:
- ... Cetyltrimethylammonium bromide (CTAB), a cationic surfactant, is known to have strong bactericidal potential. In this study, we report a facile approach for preparing CTAB-containing polysulfone-sulfonated polyethersulfone (PSF-SPES) based ultrafiltration membranes with antibacterial properties. The CTAB was added in gelation medium at three different concentrations and made an electrostatic inter ...
- DOI:
- 10.1016/j.memsci.2019.117438
- https://doi.org/10.1016/j.memsci.2019.117438
- Author:
- Yongjian Xu; Yun Shi; Feng Lei; Lei Dai
- Source:
- Carbohydrate polymers 2020 v.230 pp. 115671
- ISSN:
- 0144-8617
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; antibacterial properties; antibiotics; bacterial infections; cellulosic fibers; copper; energy-dispersive X-ray analysis; ligands; scanning electron microscopy; schiff bases; ultraviolet-visible spectroscopy
- Abstract:
- ... Cellulose-based materials are widely used in the biomedical field. However, the lack of antibacterial activities of cellulose fibers inevitably causes bacterial infection damages. In this study, Schiff base was first introduced to endow the cellulose fibers good antibacterial property and copper ions were complexed with Schiff base to form a complex. The prepared complex greatly enhanced the antib ...
- DOI:
- 10.1016/j.carbpol.2019.115671
- https://doi.org/10.1016/j.carbpol.2019.115671
- Author:
- Lin Wang; Lizhuan Lin; Jie Pang
- Source:
- Carbohydrate polymers 2020 v.245 pp. 116619
- ISSN:
- 0144-8617
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; antimicrobial properties; atomic force microscopy; carbon nanotubes; crystal structure; differential thermal analysis; foods; gallic acid; gelatin; hydrogen bonding; konjac mannan; mechanical properties; nanocomposites; shelf life; thermogravimetry
- Abstract:
- ... A novel nanocomposite film was developed by incorporating functionalized carbon nanotube (PCNT) and gallic acid (GA) into carboxymethyl konjac glucomannan (CKGM) and gelatin (GL) matrix. The influences of the PCNT content on the structural, morphological, mechanical, barrier, thermal and antimicrobial properties of CKGM/GL nanocomposite film were discussed. The structure of PCNT@CKGM/GL nanocompos ...
- DOI:
- 10.1016/j.carbpol.2020.116619
- https://doi.org/10.1016/j.carbpol.2020.116619
- Author:
- Xueyan Zou; Yu Zhang; Jinqiu Yuan; Zhibo Wang; Rui Zeng; Kun Li; Yanbao Zhao; Zhijun Zhang
- Source:
- RSC advances 2020 v.10 no.39 pp. 23270-23275
- ISSN:
- 2046-2069
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; X-ray diffraction; adsorption; detection limit; polyacrylamide gel electrophoresis; silica; skeleton; surface area; thermogravimetry; thiols; transmission electron microscopy
- Abstract:
- ... In this study, porous silica nanoparticles functionalized with a thiol group (SiO₂–SH NPs) were synthesized via a one-pot method. Subsequently, iminodiacetic acid was modified, and further adsorption of Ni²⁺ ions was conducted to obtain a SiO₂–S/NH–Ni nano-adsorbent. Then, transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, t ...
- DOI:
- 10.1039/d0ra01193b
- https://doi.org/10.1039/d0ra01193b
- Author:
- Asghar Eskandarinia; Amirhosein Kefayat; Mosayeb Gharakhloo; Maria Agheb; Darioush Khodabakhshi; Mehdi Khorshidi; Vafa Sheikhmoradi; Mohammad Rafienia; Hossein Salehi
- Source:
- International journal of biological macromolecules 2020 v.149 pp. 467-476
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; animal models; antibacterial properties; biocompatibility; collagen; dermis; fibroblasts; histopathology; in vivo studies; nanofibers; propolis; reflectance spectroscopy; scanning electron microscopy; thermogravimetry; tissue repair; water uptake
- Abstract:
- ... A biocompatible and antibacterial scaffold with efficient wound healing activity can be an appropriate option for wound dressing application. In this study, polyurethane-hyaluronic acid (PU-HA) nanofibrous wound dressing was fabricated and then enriched with three different concentrations of ethanolic extract of propolis (EEP). The obtained samples were characterized by attenuated total reflectanc ...
- DOI:
- 10.1016/j.ijbiomac.2020.01.255
- https://doi.org/10.1016/j.ijbiomac.2020.01.255
- Author:
- Shahid-ul-Islam; B.S. Butola
- Source:
- International journal of biological macromolecules 2020 v.158 pp. 94-103
- ISSN:
- 0141-8130
- Subject:
- Citrus sinensis; Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; antibacterial properties; antioxidants; chitosan; color; cotton; dyeing; dyes; energy-dispersive X-ray analysis; fabrics; finishes; functional properties; human health; mordants; plant extracts; salts; scanning electron microscopy; shrimp shells; synergism; thermogravimetry; ultraviolet-visible spectroscopy
- Abstract:
- ... Green finishing formulations have established an important place in textile dyeing and finishing industry. The use of plant extracts along with chemical metallic mordants is reported to increase colour values and improve fastness properties. However, metal salts as mordants constantly pose environmental and human health risks. The purpose of this work is to examine and extend the knowledge of natu ...
- DOI:
- 10.1016/j.ijbiomac.2020.04.209
- https://doi.org/10.1016/j.ijbiomac.2020.04.209
- Author:
- Laura Bergamonti; Marianna Potenza; Azar Haghighi Poshtiri; Andrea Lorenzi; Anna Maria Sanangelantoni; Laura Lazzarini; Pier Paolo Lottici; Claudia Graiff
- Source:
- Carbohydrate polymers 2020 v.231 pp. 115773
- ISSN:
- 0144-8617
- Subject:
- Aspergillus niger; Bacillus subtilis; Escherichia coli; Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; acid hydrolysis; aesthetics; cellulose; coatings; cotton; crystal structure; fungi; mechanical testing; minimum inhibitory concentration; nanocrystals; nanosilver; silver; sulfuric acid; transmission electron microscopy; waste paper
- Abstract:
- ... Waste paper is an environmentally friendly source of cellulosic material. Here we propose a new treatment based on nanocrystalline cellulose (CNC) for paper preservation and consolidation. Suspensions of CNC were prepared by sulfuric acid hydrolysis using waste paper as cellulose source (CNCWP) and compared with CNC from cotton linter (CNCCL). Both CNCs were obtained with good yield, showing high ...
- DOI:
- 10.1016/j.carbpol.2019.115773
- https://doi.org/10.1016/j.carbpol.2019.115773
- Author:
- Pei Lin; Fu-Qing Wang; Chang-Tian Li; Zheng-Fei Yan
- Source:
- Biotechnology and bioprocess engineering 2020 v.25 no.3 pp. 450-458
- ISSN:
- 1226-8372
- Subject:
- Bacillus subtilis; Candida albicans; Escherichia coli; Eurotium; Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Staphylococcus aureus; X-ray diffraction; antibacterial properties; bacteria; biosynthesis; ions; nanoparticles; nanosilver; neomycin; silver; synergism; tea; transmission electron microscopy; ultraviolet-visible spectroscopy; virulent strains
- Abstract:
- ... In this study, biosynthesis of silver nanoparticles (AgNPs) by using Eurotium cristatum, isolated from Fuzhuan brick-tea and its antibacterial activity has been demonstrated. AgNPs were characterized at 425 nm as maximum absorbance peak by ultraviolet-visible spectrophotometry. The images of transmission electron microscopy revealed that AgNPs are spherical shape with at 15–20 nm in size. The X-ra ...
- DOI:
- 10.1007/s12257-019-0506-7
- https://doi.org/10.1007/s12257-019-0506-7
- Author:
- Huimin Sun; Shuai Li; Shanshan Chen; Chunying Wang; Di Liu; Xinxin Li
- Source:
- International journal of biological macromolecules 2020 v.159 pp. 696-703
- ISSN:
- 0141-8130
- Subject:
- Bacillus subtilis; Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; antimicrobial properties; antioxidants; biodegradability; cinnamon; corn; corn oil; emulsions; encapsulation; essential oils; microstructure; oxygen; particle size distribution; permeability; polymers; sodium; starch; tensile strength; water vapor
- Abstract:
- ... This study aimed to determine the potential of sodium starch octenylsuccinate (SSOS)-based Pickering emulsions incorporated with cinnamon essential oil (CEO) as a vehicle for delivering active biodegradable films to improve their antimicrobial and antioxidant activites. This study explored the combined effects of mixed oils (CEO and corn oils). Particle size distribution, mean drop size, ζ-potenti ...
- DOI:
- 10.1016/j.ijbiomac.2020.05.118
- https://doi.org/10.1016/j.ijbiomac.2020.05.118
- Author:
- Zunaira Habib; Sher Jamal Khan; Nasir Mehmood Ahmad; Hafiz Muhammad Aamir Shahzad; Yousuf Jamal; Imran Hashmi
- Source:
- Environmental technology 2020 v.41 no.28 pp. 3657-3669
- ISSN:
- 1479-487X
- Subject:
- Bacillus subtilis; Escherichia coli; Fourier transform infrared spectroscopy; antibacterial properties; antifouling activities; atomic force microscopy; bacterial growth; biofilm; contact angle; energy-dispersive X-ray analysis; environmental technology; nanofiltration; permeability; polyamides; silver
- Abstract:
- ... Modification of active membrane surface is an auspicious way to enhance the membrane performance. In our study, a commercially available composite polyamide Nanofiltration (NF) membrane was modified by immobilizing silver doped TiO₂ (Ag–TiO₂) nanoparticles. Ag–TiO₂ with different nanoparticles concentration (0.05, 0.1, and 0.5 wt. %) were coated on the surface of the membrane by a dip coating meth ...
- DOI:
- 10.1080/09593330.2019.1617355
- https://doi.org/10.1080/09593330.2019.1617355
- Author:
- L.M. Dwivedi; K. Baranwal; S. Gupta; M. Mishra; S. Sundaram; V. Singh
- Source:
- International journal of biological macromolecules 2020 v.149 pp. 1323-1330
- ISSN:
- 0141-8130
- Subject:
- Bacillus subtilis; Cellulosimicrobium cellulans; Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus; X-ray diffraction; antibiotics; bioactive properties; guar gum; nanocomposites; nanomaterials; oxidation; particle size; scanning electron microscopy; sodium; sodium alginate; transmission electron microscopy; zinc oxide
- Abstract:
- ... The present study describes synthesis, characterization and antibacterial application of oxidized sodium alginate (OSA)-zinc oxide (ZnO) hybrid nanostructures (OSA-ZnO). In continuation to our previous study on oxidized guar gum (OGG)-ZnO (OGG-ZnO) nanocomposite, in the present study we have chosen OSA to understand the role of polysaccharide charge type in designing the antibacterial material. Th ...
- DOI:
- 10.1016/j.ijbiomac.2020.02.011
- https://doi.org/10.1016/j.ijbiomac.2020.02.011
- Author:
- Liduo Rong; Xin Shen; Bijia Wang; Zhiping Mao; Xueling Feng; Xiaofeng Sui
- Source:
- International journal of biological macromolecules 2020 v.147 pp. 18-23
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; acetoacetic acid; antibacterial properties; biopolymers; cellulose; chitosan; cross-linking reagents; crosslinking; droplets; emulsifiers; emulsions; enamines; gels; ingredients; rheology; thyme; viscosity
- Abstract:
- ... Organo-hydrogels are widely used in various fields, due to functional organic ingredients immobilized by the gel network or stored and protected by the gels. Herein, cellulose acetoacetate (CAA) served as reactive natural polymer emulsifier to stabilize thyme oil-in-water (O/W) emulsions. Hydroxypropyl chitosan (HPCS) was added to the continuous phase in emulsions to achieve the organo-hydrogel vi ...
- DOI:
- 10.1016/j.ijbiomac.2020.01.052
- https://doi.org/10.1016/j.ijbiomac.2020.01.052
- Author:
- Betül Yılmaz Öztürk; Bükay Yenice Gürsu; İlknur Dağ
- Source:
- Process biochemistry 2020 v.89 pp. 208-219
- ISSN:
- 1359-5113
- Subject:
- Candida albicans; Escherichia coli; Fourier transform infrared spectroscopy; Gelidium; X-ray diffraction; antimicrobial properties; bacteria; biofilm; crystal structure; geometry; minimum inhibitory concentration; moieties; nanoparticles; nanosilver; reducing agents; sustainable technology; therapeutics; transmission electron microscopy; ultraviolet-visible spectroscopy; yeasts
- Abstract:
- ... In our study, green synthesis of silver nanoparticles was carried out using a red algae Gelidium corneum extract as reducing agent. The obtained silver nanoparticles were characterized by UV–vis, TEM, XRD, FTIR and ICP-MS measurements. FTIR measurements indicated the possible functional groups responsible for the stabilization and reduction of nanoparticles, while XRD analysis results explained th ...
- DOI:
- 10.1016/j.procbio.2019.10.027
- https://doi.org/10.1016/j.procbio.2019.10.027
- Author:
- Sania Naz; Saira Tabassum; Nelson Freitas Fernandes; Mohammad Mujahid; Muhammad Zia; Esperanza J. Carcache de Blanco
- Source:
- Natural product research 2020 v.34 no.5 pp. 720-725
- ISSN:
- 1478-6427
- Subject:
- Bacillus subtilis; Escherichia coli; Fourier transform infrared spectroscopy; Rhus; X-radiation; X-ray diffraction; animal models; antibacterial properties; antineoplastic agents; cupric oxide; cytotoxicity; drug development; energy-dispersive X-ray analysis; geometry; heat; inhibitory concentration 50; nanoparticles; neoplasm cells; particle size; prostatic neoplasms; protein kinases; reducing agents; scanning electron microscopy; thermal analysis; transcription factor NF-kappa B; transmission electron microscopy
- Abstract:
- ... The present study reports ecofriendly synthesis of CuO nanoparticles (NPs) using an extract of Rhus punjabensis as a reducing agent. NPs structural and composition analysis are evaluated by X-rays diffraction (XRD), Fourier transform infrared, Energy dispersive spectroscopy, Scanning electron microscopy, Transmission electron microscopy, and Thermal analysis. The NPs have pure single phase monocli ...
- DOI:
- 10.1080/14786419.2018.1495633
- https://doi.org/10.1080/14786419.2018.1495633
- Author:
- Yupei Li; Jiameng Li; Zhenqiang Shi; Yilin Wang; Xin Song; Liya Wang; Mei Han; Heyue Du; Chao He; Weifeng Zhao; Baihai Su; Changsheng Zhao
- Source:
- Carbohydrate polymers 2020 v.243 pp. 116470
- ISSN:
- 0144-8617
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray photoelectron spectroscopy; adsorption; anticoagulant activity; anticoagulants; bacteria; blood; chemical composition; chitosan; complement; crosslinking; endotoxins; hemolysis; hydrogels; patients; platelet activation; scanning electron microscopy; sorbents
- Abstract:
- ... Here, we describe a green approach to fabricate genipin crosslinked chitosan-kappa-carrageenan composite hydrogels (C-K hydrogels) aiming at reducing endotoxin level and bacteria burden in septic blood synchronously. The chemical compositions and morphologies of the developed C-K hydrogels were characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and scanning ...
- DOI:
- 10.1016/j.carbpol.2020.116470
- https://doi.org/10.1016/j.carbpol.2020.116470
18. Anticoagulant dialyzer with enhanced Ca2+ chelation and hydrophilicity for heparin free hemodialysis
- Author:
- Yang Liu; Guiliang Li; Qiu Han; Haibo Lin; Qiang Li; Jing Hua; Fu Liu
- Source:
- Journal of membrane science 2020 v.604 pp. 118082
- ISSN:
- 0376-7388
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; adhesion; adsorption; anticoagulants; antifouling activities; aqueous solutions; artificial membranes; atomic force microscopy; biocompatibility; blood platelets; calcium; carbon; chelation; complement; contact angle; creatine; crosslinking; dialysis; hemodialysis; hemolysis; heparin; hydrogels; hydrophilicity; nuclear magnetic resonance spectroscopy; phosphorus; proteins; scanning electron microscopy; sodium; stable isotopes; swine; thrombosis; toxins; urea
- Abstract:
- ... Inhibiting thrombosis in extracorporeal dialyzer is predominantly determined by the compatible interface design. It is challenging to develop anticoagulant dialyzers for clinical heparin free dialysis. Herein, we develop an environmentally friendly approach to construct a hydrogel skin composed of poly (sodium alginate-acrylic acid) P (SA-AA) network on polysulfone (PSf) membranes via pre-seeding ...
- DOI:
- 10.1016/j.memsci.2020.118082
- https://doi.org/10.1016/j.memsci.2020.118082
- Author:
- C. Vijilvani; M.R. Bindhu; F.C. Frincy; Mohamad S. AlSalhi; S. Sabitha; K. Saravanakumar; Sandhanasamy Devanesan; M. Umadevi; Mamduh J. Aljaafreh; Muhammad Atif
- Source:
- Journal of photochemistry and photobiology 2020 v.202 pp. 111713
- ISSN:
- 1011-1344
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Solanum nigrum; X-ray diffraction; aminophenols; antioxidants; biosynthesis; catalysts; catalytic activity; energy-dispersive X-ray analysis; gold; leaves; nanobiotechnology; nanogold; nanomedicine; nanoparticles; nanosilver; p-nitrophenol; palladium; physicochemical properties; polyphenols; silver; sodium borohydride; transmission electron microscopy
- Abstract:
- ... The field of nanobiotechnology and nanomedicine paves way for the use of several nanoparticles. Especially, in biomedical applications, the silver nanoparticles (AgNPs), gold nanoparticles (AuNPs) and palladium nanoparticles (PdNPs) are found most vital and promising, among other nanoparticles. The biomedical activities of these particles mostly depend on their shape, size and distribution. Prepar ...
- DOI:
- 10.1016/j.jphotobiol.2019.111713
- https://doi.org/10.1016/j.jphotobiol.2019.111713
- Author:
- Vivek Kumar Pandey; Siddh Nath Upadhyay; Keshavan Niranjan; Pradeep Kumar Mishra
- Source:
- International journal of biological macromolecules 2020 v.157 pp. 212-219
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Listeria monocytogenes; X-ray diffraction; anti-infective agents; antimicrobial properties; biodegradability; biodegradation; chitosan; contact angle; crystal structure; food packaging; hydrophobicity; light scattering; meat; nanocomposites; nanosilver; packaging materials; polyvinyl alcohol; scanning electron microscopy; shelf life; ultraviolet-visible spectroscopy
- Abstract:
- ... Stable silver nanoparticles (AgNPs) of size 80 ± 11 nm produced by chitosan (CH) mediated green synthesis were blended with polyvinyl alcohol (PVA) to form electrospun fibrous composite nano-layers (FCNLs). The chitosan acted as the stabilising as well as an antimicrobial agent in combination with the AgNPs which were characterised using UV–visible spectrophotometry, dynamic light scattering (DLS) ...
- DOI:
- 10.1016/j.ijbiomac.2020.04.149
- https://doi.org/10.1016/j.ijbiomac.2020.04.149
- Author:
- Nasser A. Al-Tayyar; Ahmed M. Youssef; Rashad R. Al-Hindi
- Source:
- Food packaging and shelf life 2020 v.25 pp. 100523
- ISSN:
- 2214-2894
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Gram-negative bacteria; Gram-positive bacteria; Staphylococcus aureus; X-ray diffraction; antibacterial properties; antimicrobial packaging; breads; chitosan; contact angle; ecological footprint; food packaging; food pathogens; mechanical properties; nanocomposites; nanoparticles; packaging materials; permeability; polyvinyl alcohol; scanning electron microscopy; shelf life; silica; water vapor; zinc oxide; Iraq
- Abstract:
- ... In the current work, antimicrobial bionanocomposite films were fabricated based on chitosan (CS), poly (vinyl alcohol) (PVA) and nanocomposites comprised of silicon dioxide nanoparticles doped with zinc oxide nanoparticles (ZnO-SiO₂). The ZnO-SiO₂ nanocomposite was prepared and incorporated into a PVA/CS blend at different ratios (0.50, 1.0, 3.0 and 5.0 %) to generate the PVA/CS/ZnO-SiO₂ bionanoco ...
- DOI:
- 10.1016/j.fpsl.2020.100523
- https://doi.org/10.1016/j.fpsl.2020.100523
- Author:
- M. Amirul Islam; Walid M. Hassen; Azam F. Tayabali; Jan J. Dubowski
- Source:
- Biochemical engineering journal 2020 v.154 pp. 107435
- ISSN:
- 1369-703X
- Subject:
- Bacillus subtilis; Escherichia coli; Fourier transform infrared spectroscopy; Legionella pneumophila; Legionnaires' disease; antibodies; antimicrobial peptides; bacteria; binding capacity; biosensors; chemical bonding; culture media; fluorescence microscopy; mammals; prediction
- Abstract:
- ... Detection of pathogenic Legionella pneumophila by culture-based methods is not efficient in predicting outbreaks of the Legionnaires’ disease. The main problem is the relatively slow time-to-result and the inability of some culture media to support the growth of viable bacteria. One strategy to alleviate these issues is developing biosensors functionalized with mammalian antibodies designed to cap ...
- DOI:
- 10.1016/j.bej.2019.107435
- https://doi.org/10.1016/j.bej.2019.107435
- Author:
- Amr Fouda; Saad El-Din Hassan; Abdullah M. Abdo; Mamdouh S. El-Gamal
- Source:
- Biological trace element research 2020 v.195 no.2 pp. 707-724
- ISSN:
- 0163-4984
- Subject:
- Alternaria alternata; Aspergillus niger; Culex pipiens; Escherichia coli; Fourier transform infrared spectroscopy; Fusarium oxysporum; Gram-negative bacteria; Gram-positive bacteria; Musca domestica; Pseudomonas aeruginosa; Pythium ultimum; Streptomyces capillispiralis; Streptomyces pseudogriseolus; Streptomyces zaomyceticus; X-ray diffraction; anti-infective agents; antimicrobial properties; antioxidant activity; bioactive compounds; biocatalysts; biosynthesis; endophytes; energy-dispersive X-ray analysis; filtrates; hydrogen peroxide; in vitro studies; iron; larvicides; metabolites; nanoparticles; nanosilver; particle size; plant pathogenic fungi; scanning electron microscopy; surface plasmon resonance; transmission electron microscopy; ultraviolet-visible spectroscopy
- Abstract:
- ... In this study, metabolites involved in the free-biomass filtrates for three endophytic actinomycetes of Streptomyces capillispiralis Ca-1, Streptomyces zaomyceticus Oc-5, and Streptomyces pseudogriseolus Acv-11 were used as biocatalysts for green synthesis of silver nanoparticles (Ag-NPs). Characterization of biosynthesized Ag-NPs was accomplished using UV-Vis spectroscopy, X-ray diffraction patte ...
- DOI:
- 10.1007/s12011-019-01883-4
- https://doi.org/10.1007/s12011-019-01883-4
- Author:
- Anand Kumar Keshari; Ragini Srivastava; Payal Singh; Virendra Bahadur Yadav; Gopal Nath
- Source:
- Journal of Ayurveda and integrative medicine 2020 v.11 no.1 pp. 37-44
- ISSN:
- 0975-9476
- Subject:
- Ayurvedic medicine; Cestrum nocturnum; Citrobacter; Escherichia coli; Fourier transform infrared spectroscopy; Vibrio cholerae; X-ray diffraction; antibacterial properties; antioxidant activity; ascorbic acid; bacterial growth; growth retardation; hydrogen peroxide; hydroxyl radicals; leaf extracts; minimum inhibitory concentration; nanosilver; particle size; silver nitrate; superoxide anion; toxicity; transmission electron microscopes; ultraviolet-visible spectroscopy
- Abstract:
- ... Silver nanoparticles are toxic to bacteria and have widespread application in different research areas.The aim of this study was to synthesize silver nanoparticles using an aqueous leaf extract of Cestrum nocturnum and to test its antioxidant and antibacterial activities.The silver nanoparticles were synthesized by addition of 20 ml extract (8% w/v) with 180 ml silver nitrate solution (1 mM). The ...
- DOI:
- 10.1016/j.jaim.2017.11.003
- PubMed:
- 30120058
- PubMed Central:
- PMC7125370
- https://doi.org/10.1016/j.jaim.2017.11.003
- Author:
- Nina Alizadeh; Shokufeh Malakzadeh
- Source:
- International journal of biological macromolecules 2020 v.147 pp. 778-791
- ISSN:
- 0141-8130
- Subject:
- 2,2-diphenyl-1-picrylhydrazyl; Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; antibacterial properties; antineoplastic activity; antioxidant activity; antioxidants; bacteria; biodegradability; cell lines; chitosan; curcumin; cytotoxicity; encapsulation; gamma-cyclodextrin; hydrophobicity; inhibitory concentration 50; nanoparticles; polyphenols; scanning electron microscopy; ultraviolet-visible spectroscopy
- Abstract:
- ... Curcumin, as a naturally occurring polyphenol, has been extensively used as anticancer and antioxidant agent due to its ability to protect cells from oxidative damage. In the present study, we have prepared highly soluble CUR-β-cyclodextrin (β-CD) and γ-cyclodextrin (γ-CD) hollow spheres. UV–Vis method was employed to approve the successful formation of the inclusion complex where the aromatic rin ...
- DOI:
- 10.1016/j.ijbiomac.2020.01.206
- https://doi.org/10.1016/j.ijbiomac.2020.01.206
26. Application of Glycyrrhiza glabra L. Root as a Natural Antibacterial Agent in Finishing of Textile
- Author:
- Fazlıhan YILMAZ
- Source:
- Industrial crops and products 2020 v.157 pp. 112899
- ISSN:
- 0926-6690
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Glycyrrhiza glabra; Staphylococcus aureus; alum; aluminum sulfate; ambient temperature; antibacterial properties; antibiotics; atomic absorption spectrometry; bacteria; color; copper; copper sulfate; dyeing; ferrous sulfate; iron; lighting; potassium; scanning electron microscopy; textile finishes; tin; washing; woolen fabric; zinc chloride
- Abstract:
- ... The use of plant resources in different areas is increasing day by day. One of the uses of these resources is textile dyeing. In this study, Glycyrrhiza glabra L. roots were used for dyeing woolen fabrics. It is also aimed to give these dyed fabrics naturally antibacterial properties. In the dyeing process, copper (II) sulfate, tin chloride, iron (II) sulfate, zinc chloride and potassium aluminum ...
- DOI:
- 10.1016/j.indcrop.2020.112899
- https://doi.org/10.1016/j.indcrop.2020.112899
- Author:
- Ruyue Wang; Jinfeng Li; Dongya Dang; Jiong Hu; Yafang Hu; Jun Fan
- Source:
- Enzyme and microbial technology 2020 v.137 pp. 109547
- ISSN:
- 0141-0229
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; cellulose; corn; enantiomers; humans; proteolysis; recombinant proteins; serine; serine racemase; technology; trypsin
- Abstract:
- ... Recombinant protein overexpressed in Escherichia coli is often less folded, leading to form the insoluble aggregates also called as inclusion bodies (IBs). IBs are classified as active and inactive ones, and enzyme produced as active IBs is the novel carrier-free immobilized material. In this study, we determined that His6-tagged serine racemase (SR) from maize or human produced as partially activ ...
- DOI:
- 10.1016/j.enzmictec.2020.109547
- https://doi.org/10.1016/j.enzmictec.2020.109547
- Author:
- Mohamed S. Aref; Salem S. Salem
- Source:
- Biocatalysis and agricultural biotechnology 2020 v.27 pp. 101689
- ISSN:
- 1878-8181
- Subject:
- Bacillus subtilis; Cinnamomum camphora; Escherichia coli; Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Staphylococcus aureus; X-ray diffraction; antibacterial properties; biomass; biotechnology; callus; callus culture; energy-dispersive X-ray analysis; nanoparticles; nanosilver; plant extracts; scanning electron microscopy; tissue culture; transmission electron microscopy; ultraviolet-visible spectroscopy; wavelengths
- Abstract:
- ... Plant tissue culture is considered as a basic and fundamental component of plant biotechnology and is considered a good approach for green synthesis of nanoparticles (NPs) because it is safe, eco-friendly and clean method. In the current study, callus extract of Cinnamonum camphora was utilized to the synthesis of silver nanoparticles (Ag-NPs) for the first time. Callus culture of C. camphora was ...
- DOI:
- 10.1016/j.bcab.2020.101689
- https://doi.org/10.1016/j.bcab.2020.101689
- Author:
- Devaraj Bharathi; Selvaraj Preethi; Kalimuthu Abarna; Manjunathan Nithyasri; Palaniswamy Kishore; Kathirvel Deepika
- Source:
- Biocatalysis and agricultural biotechnology 2020 v.27 pp. 101698
- ISSN:
- 1878-8181
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Solanum lycopersicum; acridine orange; antibacterial properties; antineoplastic activity; apoptosis; biosynthesis; color; energy-dispersive X-ray analysis; ethidium; fluorescence; fluorescence microscopy; human cell lines; human diseases; inhibitory concentration 50; iron; iron oxides; leaf extracts; light scattering; lung neoplasms; magnetism; nanoparticles; neoplasm cells; phytochemicals; scanning electron microscopy; staining; ultraviolet-visible spectroscopy
- Abstract:
- ... The synthesis of iron based magnetic nanoparticles is an expanding research area due to their potential applications in the development of novel technologies. The present study reports an eco-friendly synthesis of iron oxide nanoparticles (FeONPs) using Solanum lycopersicum leaf extract by a bio-inspired method. Synthesized FeONPs were characterized by using UV–visible spectroscopy, fourier transf ...
- DOI:
- 10.1016/j.bcab.2020.101698
- https://doi.org/10.1016/j.bcab.2020.101698
- Author:
- Tarık Eren; Gülay Baysal; Faik Doğan
- Source:
- Journal of polymers and the environment 2020 v.28 no.9 pp. 2469-2480
- ISSN:
- 1566-2543
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Listeria; Salmonella; Staphylococcus aureus; X-ray diffraction; biocompatibility; cement; curcumin; environment; free radicals; hydroxyapatite; orthopedics; patients; polyethylene; polyethyleneimine; polymethylmethacrylate; risk factors; silsesquioxanes; strength (mechanics); viability
- Abstract:
- ... Especially in orthopedics and implant applications, the bone cements are the main pillar of implants to form permanent bonds with the body. However, the main risk factor for implants is infection and loosening of the implant over time. This situation can seriously compromise patient comfort and even patient life. Therefore, superior mechanical strength, biocompatibility and antimicrobial propertie ...
- DOI:
- 10.1007/s10924-020-01787-8
- https://doi.org/10.1007/s10924-020-01787-8
- Author:
- Anbazhagan Sathiyaseelan; Kandasamy Saravanakumar; Arokia Vijaya Anand Mariadoss; Myeong-Hyeon Wang
- Source:
- International journal of biological macromolecules 2020 v.153 pp. 63-71
- ISSN:
- 0141-8130
- Subject:
- Bacillus cereus; Escherichia coli; Fourier transform infrared spectroscopy; Gynura procumbens; Listeria monocytogenes; Salmonella enterica; Staphylococcus aureus; X-ray diffraction; alpha-amylase; alpha-glucosidase; antibacterial properties; antioxidants; biocompatibility; chitosan; cytotoxicity; encapsulation; enzyme inhibition; flavonoids; fungi; minimum inhibitory concentration; moieties; nanoparticles; nanosilver; silver; transmission electron microscopy; ultraviolet-visible spectroscopy; zeta potential
- Abstract:
- ... The work synthesized the fungal chitosan (FCS) encapsulated Gynura procumbens (GP) mediated silver nanoparticles (GP-AgNPs) for enhanced antidiabetic, antioxidant and antibacterial activity. The FCS-GP-AgNPs were characterized through UV–Visible spectroscopy, FTIR, XRD, Zeta size analyzer and TEM. The FTIR spectrum of GP-AgNPs exhibited functional groups of phenolic and flavonoids. The crystal pea ...
- DOI:
- 10.1016/j.ijbiomac.2020.02.291
- https://doi.org/10.1016/j.ijbiomac.2020.02.291
- Author:
- Deepika Sharma; Lalita Ledwani; Tarang Mehrotra; Naveen Kumar; Naveed Pervaiz; Ravinder Kumar
- Source:
- Journal of photochemistry and photobiology 2020 v.206 pp. 111841
- ISSN:
- 1011-1344
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Rheum australe; Staphylococcus aureus; X-ray diffraction; anthraquinones; antimicrobial properties; apoptosis; atomic force microscopy; bacteria; biosynthesis; cell walls; cost effectiveness; energy-dispersive X-ray analysis; hematite; hysteresis; magnetism; models; nanoparticles; neoplasm cells; plant extracts; roots; scanning electron microscopy; thermal properties; thermogravimetry; transmission electron microscopy; ultraviolet-visible spectroscopy; uterine cervical neoplasms
- Abstract:
- ... The synthesis of magnetic Hematite nanoparticles (α-Fe₂O₃) via green route has been a long lasting challenge for the scientific and technological fascination of many researchers. In the present investigation, iron oxide nanoparticles (α-Fe₂O₃) were synthesized using Rheum emodi roots in a cost effective and ecofriendly method. Their physicochemical property orchestration involved techniques such a ...
- DOI:
- 10.1016/j.jphotobiol.2020.111841
- https://doi.org/10.1016/j.jphotobiol.2020.111841
- Author:
- Yin Yin Chan; Yean Ling Pang; Steven Lim; Chin Wei Lai; Ahmad Zuhairi Abdullah; Woon Chan Chong
- Source:
- Environmental science and pollution research 2020 v.27 no.28 pp. 34675-34691
- ISSN:
- 0944-1344
- Subject:
- Clitoria ternatea; Escherichia coli; Fourier transform infrared spectroscopy; X-ray diffraction; antibacterial properties; biochemical compounds; biosynthesis; energy; energy-dispersive X-ray analysis; iron; pollution; reflectance spectroscopy; research; silver; sonocatalysis; surface area; thermogravimetry; ultrasonic treatment; zeta potential; zinc oxide
- Abstract:
- ... Nowadays, the current synthesis techniques used in industrial production of nanoparticles have been generally regarded as nonenvironmentally friendly. Consequently, the biosynthesis approach has been proposed as an alternative to reduce the usage of hazardous chemical compounds and harsh reaction conditions in the production of nanoparticles. In this work, pure, iron (Fe)-doped and silver (Ag)-dop ...
- DOI:
- 10.1007/s11356-019-06583-z
- https://doi.org/10.1007/s11356-019-06583-z
- Author:
- Liszt Y.C. Madruga; Roberta M. Sabino; Elizabeth C.G. Santos; Ketul C. Popat; Rosangela de C. Balaban; Matt J. Kipper
- Source:
- International journal of biological macromolecules 2020 v.152 pp. 483-491
- ISSN:
- 0141-8130
- Subject:
- Bacillus cereus; Escherichia coli; Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Staphylococcus aureus; antibacterial properties; antioxidant activity; antioxidants; biocompatibility; biocompatible materials; carbon; cell viability; chemical structure; cytotoxicity; erythrocytes; growth retardation; hemolysis; humans; kappa carrageenan; monochloroacetic acid; nuclear magnetic resonance spectroscopy; stable isotopes; steam; viscosity
- Abstract:
- ... Chemical modification of polysaccharides is an important route to enhance, develop or change polysaccharide properties. In this study, carboxymethylation of kappa-carrageenan (KC) with monochloroacetic acid was performed to achieve different degrees of substitution (DS) of carboxymethyl-kappa-carrageenan (CMKC). The degree of substitution ranged from 0.8 to 1.6 and was calculated from the ¹H NMR s ...
- DOI:
- 10.1016/j.ijbiomac.2020.02.274
- https://doi.org/10.1016/j.ijbiomac.2020.02.274
- Author:
- Faten B. Hussein; Kaushik Venkiteshwaran; Brooke K. Mayer
- Source:
- Journal of environmental sciences (China) 2020 v.92 pp. 129-140
- ISSN:
- 1001-0742
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Western blotting; X-ray photoelectron spectroscopy; adsorption; bacteria; binding proteins; desorption; eutrophication; ice nucleation; ionic strength; pH; phosphates; phosphorus; polyacrylamide gel electrophoresis; potassium chloride; protein synthesis; temperature; titration; wastewater treatment
- Abstract:
- ... Simultaneous overabundance and scarcity of inorganic phosphate (Pᵢ) is a critical issue driving the development of innovative water/wastewater treatment technologies that not only facilitate Pᵢ removal to prevent eutrophication, but also recover Pᵢ for agricultural reuse. Here, a cell-surface expressed high-affinity phosphate binding protein (PstS) system was developed, and its Pᵢ capture and rele ...
- DOI:
- 10.1016/j.jes.2020.02.016
- https://doi.org/10.1016/j.jes.2020.02.016
- Author:
- Karan Wangpaiboon; Nisachon Waiyaseesang; Pawinee Panpetch; Thanapon Charoenwongpaiboon; Sergey A. Nepogodiev; Sanong Ekgasit; Robert A. Field; Rath Pichayangkura
- Source:
- International journal of biological macromolecules 2020 v.152 pp. 473-482
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Leuconostoc citreum; X-ray diffraction; alternansucrase; dextran; genes; sucrose; water solubility
- Abstract:
- ... Glucansucrases catalyse the formation of glucans from sucrose. The glucansucrase-encoding gene from Leuconostoc citreum ABK-1, dex-N, was successfully cloned and expressed in E. coli BL21 Star (DE3). DEX-N produces 2 types of glucans: soluble (S-dextran) and insoluble (I-glucan) glucans. The S-dextran was determined to be ca. 10 kDa in size and contained >90% α-1,6 linkages; along with its water s ...
- DOI:
- 10.1016/j.ijbiomac.2020.02.247
- https://doi.org/10.1016/j.ijbiomac.2020.02.247
- Author:
- Faezeh Esmaile; Hassan Koohestani; Hassan Abdollah-Pour
- Source:
- Environmental nanotechnology, monitoring & management 2020 v.14 pp. 100303
- ISSN:
- 2215-1532
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; Ziziphora clinopodioides; antibacterial properties; bacteria; biosynthesis; crystallites; culture media; differential thermal analysis; endothermy; minimum inhibitory concentration; nanoparticles; nanosilver; organic compounds; plant extracts; scanning electron microscopy; silver nitrate; temperature; thermogravimetry; transmission electron microscopy; weight loss
- Abstract:
- ... In the current study, biosynthesis of silver nanoparticles using Ziziphora clinopodioides plant extract and their antibacterial properties were studied. Initially, the affecting parameters (the concentration of silver nitrate, the pH of the reaction, and time of reaction) on the synthesis process were optimized. Ag nanoparticles synthesized by applying optimal conditions ([AgNO₃] = 4.5 mM, pH = 8, ...
- DOI:
- 10.1016/j.enmm.2020.100303
- https://doi.org/10.1016/j.enmm.2020.100303
- Author:
- Qianqian Wang; Lin Zhang; Yanyan Liu; Gangqiang Zhang; Ping Zhu
- Source:
- Carbohydrate polymers 2020 v.232 pp. 115693
- ISSN:
- 0144-8617
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; aluminum; antibacterial properties; barium; calcium; calcium alginate; carbon; coagulation; copper; fabrics; metal ions; nuclear magnetic resonance spectroscopy; oxygen; spinning; stable isotopes; strength (mechanics); textile fibers; thermogravimetry; water uptake; zinc
- Abstract:
- ... In order to improve the mechanical properties of alginate fiber and enrich its application properties, the metal-alginate fibers were produced with wet spinning in the coagulation bath of Zn²⁺, Ba²⁺, Cu²⁺, Al³⁺ ions blended with Ca²⁺ ions. FT-IR and ¹³C NMR were used to characterize the binding mode of alginic acid with metal ions and the arrangement of G and M groups in the molecular chain. The f ...
- DOI:
- 10.1016/j.carbpol.2019.115693
- https://doi.org/10.1016/j.carbpol.2019.115693
- Author:
- Sahar Javan bakht Dalir; Hoorieh Djahaniani; Farzaneh Nabati; Malak Hekmati
- Source:
- Heliyon 2020 v.6 no.3 pp. e03624
- ISSN:
- 2405-8440
- Subject:
- Carya illinoinensis; Escherichia coli; Fourier transform infrared spectroscopy; Listeria monocytogenes; Pseudomonas aeruginosa; Staphylococcus aureus; X-ray diffraction; absorbance; agar; antibacterial properties; biosynthesis; cost effectiveness; geometry; leaf extracts; leaves; minimum inhibitory concentration; nanosilver; silver; surface plasmon resonance; transmission electron microscopy; ultraviolet-visible spectroscopy; Iran
- Abstract:
- ... A green, direct and cost-effective fabrication method is proposed for Eco-environmentally silver nanoparticles (AgNPs) through leaf extraction of Carya illinoinensis from Iran. Formation of Ag NPs was confirmed through different characterization techniques such as UV–Vis Spectroscopy, X-ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Transmission Electron Microscopy (TEM). UV-Visible ...
- DOI:
- 10.1016/j.heliyon.2020.e03624
- PubMed:
- 32215333
- PubMed Central:
- PMC7090345
- https://doi.org/10.1016/j.heliyon.2020.e03624
- Author:
- Ashitha. A; Radhakrishnan. E.K; Jyothis Mathew
- Source:
- Journal of biotechnology 2020 v.313 pp. 1-10
- ISSN:
- 0168-1656
- Subject:
- Artemisia; Bacillus subtilis; Burkholderia; Escherichia coli; Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Salmonella; Staphylococcus aureus; agar; antibacterial properties; antibiotics; bacteria; biosurfactants; cetyltrimethylammonium bromide; culture media; endophytes; esters; fatty acids; gas chromatography-mass spectrometry; glycolipids; glycosidic linkages; hydrocarbons; medicinal plants; methylene blue; pathogens; screening
- Abstract:
- ... The endophyte Burkholderia sp. WYAT7 isolated from the medicinal plant Artemisia nilagirica (Clarke) Pamp. was analyzed for its ability to produce biosurfactant. The evaluation of biosurfactant production was conducted using different screening methods which confirmed the presence of biosurfactant in the culture supernatant. CTAB- methylene blue agar plate method was used for the screening of glyc ...
- DOI:
- 10.1016/j.jbiotec.2020.03.005
- https://doi.org/10.1016/j.jbiotec.2020.03.005
- Author:
- Gopal Debnath; Panna Das; Ajay Krishna Saha
- Source:
- Proceedings of the National Academy of Sciences, India, Section B: biological sciences 2020 v.90 no.1 pp. 37-45
- ISSN:
- 0369-8211
- Subject:
- Bacillus subtilis; Escherichia coli; Fourier transform infrared spectroscopy; Lentinus; Pseudomonas aeruginosa; Staphylococcus aureus; X-ray diffraction; alpha-amylase; antibacterial properties; atomic force microscopy; biosynthesis; energy-dispersive X-ray analysis; minimum inhibitory concentration; mushrooms; nanosilver; silver; surface plasmon resonance; transmission electron microscopy; ultraviolet-visible spectroscopy; India
- Abstract:
- ... The present investigation was conducted to synthesize and characterize silver nanoparticles using wild edible mushroom extract of Lentinus tuber-regium. The current investigation also aims to determine antimicrobial and α-amylase inhibitory activity of biosynthesized silver nanoparticles (AgNPs). UV–Visible spectrophotometer study indicated that the surface plasmon resonance peak of reaction of Ag ...
- DOI:
- 10.1007/s40011-019-01076-y
- https://doi.org/10.1007/s40011-019-01076-y
- Author:
- Maryam Iman; Aboulfazl Barati; Saeed Safari
- Source:
- Cellulose 2020 v.27 no.1 pp. 347-356
- ISSN:
- 0969-0239
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; acrylamides; adults; antibacterial properties; biocompatibility; biodegradability; body weight; cellulose; cellulose nanofibers; drug delivery systems; drugs; hydrogels; intestines; laboratory animals; males; nanocomposites; nanoparticles; polyethylene glycol; rats; scanning electron microscopy; spectrometers; stomach; strength (mechanics); tetracycline; toxicity; toxicity testing
- Abstract:
- ... Hydrogels are among the drug delivery systems that are used to modify drug release by the oral route. Inclusion of porous nanoparticles and cellulose nanofibers (CNF) in a hydrogel matrix structure improves the mechanical strength of the hydrogel and modifies drug release. CNF have been widely used for the preparation of biomedical systems because of low toxicity, biodegradability, and biocompatib ...
- DOI:
- 10.1007/s10570-019-02783-5
- https://doi.org/10.1007/s10570-019-02783-5
43. Chitosan incorporation for antibacterial property improvement of jute-cotton blended denim fabric
- Author:
- Adnan Maroof Khan; Md. Mazedul Islam; Md. Mashiur Rahman Khan
- Source:
- The journal of the Textile Institute 2020 v.111 no.5 pp. 660-668
- ISSN:
- 1754-2340
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; anti-infective agents; antibacterial properties; chitosan; clothing; denim; gender; jute; Bangladesh; India
- Abstract:
- ... Jute-cotton blended denim is a new diversified product for the fashion and clothing sector. Chitosan was incorporated in this blend in order to improve its antimicrobial property. The incorporation of chitosan to the blended apparel was confirmed by Fourier transform infrared spectroscopy. Two microorganisms were used to create individual bacterial medium; one is the gram-positive Staphylococcus a ...
- DOI:
- 10.1080/00405000.2019.1657220
- https://doi.org/10.1080/00405000.2019.1657220
- Author:
- Tippabattini Jayaramudu; Kokkarachedu Varaprasad; K. Koteshwara Reddy; Radha D. Pyarasani; A. Akbari-Fakhrabadi; John Amalraj
- Source:
- International journal of biological macromolecules 2020 v.143 pp. 825-832
- ISSN:
- 0141-8130
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; X-ray diffraction; antimicrobial properties; bacteria; biopolymers; chitosan; copper; copper nanoparticles; hydrogels; nanocomposites; prototypes; stabilizers; thermogravimetry
- Abstract:
- ... Copper nanoparticles were synthesized via precipitation technique using the pseudonatural cationic chitosan biopolymer as a stabilizing agent. The nanoparticles developed were successfully incorporated into the 1:1 ratio of blended chitosan: pluronic F127 polymer solution and made their nanocomposite hydrogels by solution casting method. The formed copper-based nanocomposite hydrogels were charact ...
- DOI:
- 10.1016/j.ijbiomac.2019.09.143
- https://doi.org/10.1016/j.ijbiomac.2019.09.143
- Author:
- Aafreen Fathima; Verasundaram Manickavasagar Manikandamathavan; Raghava Rao Jonnalagadda; Balachandran Unni Nair
- Source:
- Heliyon 2020 v.6 no.8 pp. e04563
- ISSN:
- 2405-8440
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; animal models; catechin; cell membranes; hypoglycemic agents; ligands; mass spectrometry; mechanism of action; toxicity; voltammetry
- Abstract:
- ... Chromium-catechin complex was synthesized by reacting [Cr(H₂O)₆]²⁺ (hexa-aqua) with catechin as a ligand. Toxicity studies were carried out for the complex using bacterial models for safer application of this complex in the future as a drug. Chromium-catechin complex was characterized using ESI Mass spectrometry, electronic spectroscopy, FT-IR spectroscopy and cyclic voltammetry. The complex was f ...
- DOI:
- 10.1016/j.heliyon.2020.e04563
- https://doi.org/10.1016/j.heliyon.2020.e04563
- Author:
- Huihan Ma; Yu Zhao; Zijie Lu; Ronglian Xing; Xuemei Yao; Zhaoxia Jin; Yanyan Wang; Fang Yu
- Source:
- International journal of biological macromolecules 2020 v.164 pp. 986-993
- ISSN:
- 0141-8130
- Subject:
- Botrytis cinerea; Escherichia coli; Fourier transform infrared spectroscopy; Solanum lycopersicum; X-ray diffraction; anti-infective agents; antifungal properties; bioactive compounds; bioavailability; carboxymethylcellulose; chitosan; citral; composite polymers; disease incidence; electrolytes; hydrogels; microparticles; mitochondria; plant pathogenic fungi; plant protection; schiff bases; soil
- Abstract:
- ... The extensive use of chemical pesticides in agricultural production has caused great damage to the soil and ecological environment. Citral, a monoterpene aldehyde, has been shown to inhibit the growth of a variety of pathogenic fungi by affecting mitochondrial structure. However, the high volatility and chemical instability of citral may restrict its applications in the agricultural industries. In ...
- DOI:
- 10.1016/j.ijbiomac.2020.07.164
- https://doi.org/10.1016/j.ijbiomac.2020.07.164
- Author:
- Yi Sun; Shaoan Cheng; Zhufan Lin; Jiawei Yang; Chaochao Li; Ruonan Gu
- Source:
- Journal of hazardous materials 2020 v.384 pp. 121307
- ISSN:
- 0304-3894
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; biochemical oxygen demand; biodegradation; chemical oxygen demand; cost effectiveness; density functional theory; dyeing; energy efficiency; gas chromatography-mass spectrometry; liquid chromatography; methylene blue; microbial fuel cells; mineralization; organic acids and salts; oxidation; pH; pollutants; ultraviolet-visible spectroscopy
- Abstract:
- ... Plasma advanced oxidation process (PAOP) has great ability to break recalcitrant pollutants into small molecular compounds but suffers from poor performance and low energy efficiency for mineralizing dyeing pollutants. Combining advanced oxidation process with biodegradation process is an effective strategy to improve mineralization performance and reduce cost. In this study, a combined process us ...
- DOI:
- 10.1016/j.jhazmat.2019.121307
- https://doi.org/10.1016/j.jhazmat.2019.121307
- Author:
- Sona Chavoshizadeh; Sajad Pirsa; Forough Mohtarami
- Source:
- Food packaging and shelf life 2020 v.24 pp. 100501
- ISSN:
- 2214-2894
- Subject:
- Escherichia coli; Fourier transform infrared spectroscopy; X-ray diffraction; antibacterial properties; antioxidant activity; antioxidants; biodegradability; chlorophyll; color; crystal structure; food packaging; food quality; nanocomposites; opacity; permeability; pyrroles; scanning electron microscopy; shelf life; solubility; storage time; tensile strength; water vapor; wheat gluten
- Abstract:
- ... In this research biodegradable films based on wheat gluten modified with chlorophyll/polypyrrole (WG/Ch/PPy) were prepared. Some characteristics of synthesized films including; thickness, solubility, water vapor permeability (WVP), moisture, opacity, color, antioxidant, and antimicrobial and conductivity properties were studied. According to the results, by adding chlorophyll and polypyrrole to gl ...
- DOI:
- 10.1016/j.fpsl.2020.100501
- https://doi.org/10.1016/j.fpsl.2020.100501
- Author:
- Nipat Sritrakul; Sunee Nitisinprasert; Suttipun Keawsompong
- Source:
- 3 Biotech 2020 v.10 no.2 pp. 44
- ISSN:
- 2190-572X
- Subject:
- Bacillus circulans; Escherichia coli; Fourier transform infrared spectroscopy; Klebsiella oxytoca; beta-mannosidase; coconut meal; enzymatic hydrolysis; enzyme kinetics; hydrolysis; mannose; moieties; scanning electron microscopy
- Abstract:
- ... Hydrolysis products of defatted copra meal (DCM) hydrolysis were investigated with either recombinant β-mannanases from Klebsiella oxytoca KUB-CW2-3 (KMAN-3) or Bacillus circulans NT 6.7 (MAN 6.7). Morphological changes and functional groups of solid residues were also determined by scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. Results revealed that the Mic ...
- DOI:
- 10.1007/s13205-019-2005-0
- PubMed:
- 31988838
- PubMed Central:
- PMC6954935
- https://doi.org/10.1007/s13205-019-2005-0
- Author:
- Mahboubeh Mirhosseini; Alireza Shekari-Far; Fatemeh Hakimian; Bibi Fatemeh Haghiralsadat; Seyed Kamal Fatemi; Fariba Dashtestani
- Source:
- Process biochemistry 2020 v.95 pp. 131-138
- ISSN:
- 1359-5113
- Subject:
- Bacillus cereus; Escherichia coli; Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Staphylococcus aureus; antibiotics; industry; medicine; nanogold; peroxidase; public health; zeta potential
- Abstract:
- ... Nanozymes have been developed as alternative for enzymes to overcome practical limitations of enzymes in industry and medicine. Infectious diseases are becoming severe threat to public health. Hence, peroxidase nanozyme for combating bacteria have been designed. Core-Shell Au@Co-Fe hybrid nanoparticles (Au@Co-Fe NPs) were synthesized. The structure of Au@Co-Fe NPs was characterized by UV–vis and F ...
- DOI:
- 10.1016/j.procbio.2020.05.003
- https://doi.org/10.1016/j.procbio.2020.05.003
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